{"abstention_reason":null,"arm":"SUBSTRATE_DIVERSE_P2","candidate_id":"fast_slow_store_coupling__library_information_science__SUBSTRATE_DIVERSE_P2","cell_id":"fast_slow_store_coupling__library_information_science","decision":"PROPOSAL","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","proposal":{"actors":["Preservation and conservation staff responsible for environmental risk assessment","Stacks and special-collections staff who inspect storage locations","Facilities staff who may investigate confirmed environmental sources","Collection managers authorized to approve protective relocation or enclosure changes"],"affected_objective":"Detect and preserve evidence of localized cumulative environmental exposure before it becomes visible as collection damage, while maintaining coherent long-term conservation histories.","arm":"SUBSTRATE_DIVERSE_P2","authority_safety":{"authorized_first_step":"Run a 30-day shadow pilot at no more than 12 stations in two ordinary staff-only stack areas and one empty cabinet. With conservator approval, suspend commercially manufactured passive exposure dosimeters beside—but never on or inside—collection objects, retain unexposed controls, inspect them weekly, and record hypothetical responses without moving holdings or changing facilities.","decision_authority":"The preservation officer controls dosimeter selection, placement, reading, and the pilot record; a qualified conservator approves any proximity to collections and interprets ambiguous responses; collection managers authorize relocation or enclosure changes; facilities personnel alone authorize HVAC, lighting, or building modifications.","excluded_actions":["Attaching sensors, adhesives, dyes, or reactive materials to collection objects or enclosures","Using uncharacterized or homemade indicator chemicals near holdings","Treating a dosimeter response as proof of damage, mold, or a specific contaminant without corroboration","Moving, deaccessioning, treating, or restricting access to holdings during the shadow pilot","Changing HVAC, lighting, pest-control, or fire-protection settings based solely on pilot readings"],"halt_rollback":"Immediately remove and isolate all pilot materials if a coupon leaks, sheds, outgasses, attracts pests, contacts a holding, or produces an unexplained collection-safety concern. Stop interpretation if controls fail or readings are not reproducible. Because the pilot makes no collection or facilities changes, rollback consists of removing stations, retaining only safe de-identified measurements for review, and returning locations to their prior state."},"baseline":"Libraries commonly rely on room-level environmental readings, periodic walkthroughs, and visible condition surveys. These can leave short-lived or shelf-specific exposure gradients undocumented between inspections, while durable conservation records may contain observed damage without preserving the local exposure history that preceded it.","candidate_id":"fast_slow_store_coupling__library_information_science__SUBSTRATE_DIVERSE_P2","causal_chain":["Light, humidity, or reactive-vapor exposure produces a local physical dose at shelves and inside storage furniture, but that dose may vary from room-level conditions and disappear before a scheduled survey.","Replaceable passive dosimeters at fixed stations undergo calibrated material changes proportional to exposure over a bounded interval, physically retaining otherwise transient local evidence without powered sensing or continuous digital control.","Weekly visual comparison permits rapid detection of threshold crossings, while exposed coupons remain explicitly provisional measurement artifacts rather than collection-condition diagnoses.","A scheduled monthly harvest transfers selected coupons and their station metadata before indicator saturation, fading, displacement, or loss.","Preservation staff compare exposed coupons with unexposed controls and reference scales, reject compromised samples, normalize the response into stated exposure bands, and preserve uncertainty and location provenance.","Validated exposure bands and images or retained safe coupons are integrated into the durable conservation history for the location and affected collection range; anomalous results enter an existing corroboration pathway rather than directly triggering treatment.","Numbered station and batch identifiers reconcile each durable entry with its physical witness, control, exposure interval, and replacement coupon, exposing missing or contradictory transfers.","Spent, saturated, expired, or compromised coupons are removed under manufacturer instructions, keeping the local fast layer bounded while longitudinal records accumulate in the slow store."],"cell_id":"fast_slow_store_coupling__library_information_science","consequence":"Without local exposure memory, a transient microenvironment can vanish before staff can characterize it, leaving later deterioration disconnected from its possible conditions. Keeping every raw witness indefinitely, however, would produce an uninterpretable collection of fading or saturated indicators rather than a coherent conservation history.","diversity_from_prior_proposals":"Unlike sealed P1, which addresses loss and stale reuse of staff discoveries during live reference service through a searchable trace ledger, this proposal addresses unobserved physical exposure in collection storage. Its intervention is a network of passive material dosimeters, and its causal path runs from environmental dose to material change, controlled reading, and longitudinal conservation evidence rather than from staff observations to curated reference guidance.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Install conservator-approved, replaceable passive exposure witnesses at fixed stack and cabinet stations: for example, calibrated light-dose strips, humidity-time indicators, or compatible passive vapor badges selected for the local hazard. Each witness is a fast physical store whose material state accumulates nearby exposure and can be inspected locally. Inspect weekly; harvest monthly or immediately after a threshold crossing; compare each witness with an unexposed batch control and manufacturer reference scale; reject displaced, contaminated, saturated, or unreadable samples; and convert accepted responses into provenance-bearing exposure bands. Integrate those bands into durable location and collection conservation histories, retain safe representative witnesses when useful, replace harvested sensors, and require independent corroboration before any collection or facilities action.","mechanism_mapping":[{"counterfactual_removal":"Without two differentiated stores, staff must either preserve every aging physical coupon indefinitely or lose the longitudinal evidence after each coupon is replaced.","mechanism_slug":"two_store_architecture","role":"Couples a local, replaceable material exposure memory to a durable, integrated conservation history."},{"counterfactual_removal":"Without the dose-responsive material, transient shelf-level exposure leaves no local trace for later transfer; recordkeeping alone cannot reconstruct the missing physical event.","mechanism_slug":"temporal_decay_and_degradation","role":"Uses calibrated material change to retain evidence of exposure that could otherwise end before a periodic inspection."},{"counterfactual_removal":"Without fixed shelf-level placement, the witnesses would reproduce only coarse room conditions and would not address localized cabinet, lighting, or airflow gradients.","mechanism_slug":"locality_of_reference","role":"Places physical measurement memory adjacent to the microenvironment whose condition must be recalled."},{"counterfactual_removal":"Without bounded inspection and harvest intervals, indicators can saturate, fade, become detached, or remain untransferred until their provenance is uncertain.","mechanism_slug":"cadence","role":"Coordinates weekly inspection, threshold-triggered harvest, monthly transfer, and immediate replacement with indicator limits."},{"counterfactual_removal":"Without controls, batch identity, exposure intervals, and rejection rules, ordinary indicator drift or handling damage could be canonized as environmental evidence.","mechanism_slug":"data_integrity","role":"Makes control comparison, provenance preservation, uncertainty marking, and reconciliation prerequisites for durable integration."}],"nearest_rivals":["Room-level electronic environmental monitoring: provides continuous ambient readings but may miss shelf or enclosure microgradients and does not use a replaceable local material memory.","Periodic visual condition surveys: observe damage already present on objects but do not preserve the preceding exposure interval that may have caused it.","A one-time environmental audit: characterizes conditions during the visit but lacks repeated fast-store replacement and cumulative transfer into a longitudinal history.","Permanent sensor deployment with automated alerts: can measure continuously, but its essential effect depends on powered instrumentation and digital control rather than the proposed passive witness-to-history coupling."],"negative_tests":{"intervention_falsifier":"Reject the intervention if approved witnesses cannot distinguish known pilot gradients from unexposed controls, duplicate readers cannot assign the same reference band within a predefined tolerance, responses do not agree directionally with an independent calibrated spot measurement, indicators saturate before the transfer interval, or station provenance cannot be reconciled with durable entries.","problem_falsifier":"The inferred problem is unsupported if baseline mapping shows no meaningful shelf-, cabinet-, or interval-level exposure variation beyond existing measurement uncertainty, existing monitoring already preserves localized cumulative exposure at adequate resolution, and sampled conservation investigations do not suffer from missing pre-damage exposure histories.","risks":["Indicator materials could shed, leak, outgas, or chemically interact with collections if poorly selected or placed.","A cumulative response may not reveal when within the interval an exposure occurred.","Color comparison can vary with illumination, observer vision, aging, or reference-scale condition.","Staff may mistake an exposure proxy for evidence of object damage or a uniquely identified cause.","Saturation, fading, displacement, or handling contamination may create false readings.","Dense station placement and frequent harvest may create more validation work than preservation staff can sustain."],"strongest_counterevidence":"Existing calibrated dataloggers or building systems may already capture enclosure-level exposure with adequate spatial resolution, auditability, and retention; if comparison shows that passive witnesses add no otherwise missing exposure evidence, a second measurement layer would add handling risk without informational value."},"next_evidence_step":"At 12 approved stations, expose paired passive witnesses for 30 days while retaining batch controls and taking blinded weekly reference-scale readings. At the beginning, midpoint, and end, obtain independent calibrated spot measurements appropriate to each witness type. Measure inter-reader agreement, control drift, threshold discrimination, saturation, missing-station rate, harvest time, provenance completeness, transfer backlog, and reconciliation errors. Make no collection or facilities changes from pilot results.","observable_state":"The pilot can observe station identifier, location, witness type and batch, installation and harvest times, control condition, weekly material-response band, threshold crossing, reader identity, inter-reader disagreement, displacement or contamination, saturation, independent spot measurement, validation disposition, durable-record linkage, replacement status, queue age, and any safety exception. Longitudinal comparison can reveal whether localized exposure traces exist without presuming that the intervention improves preservation outcomes.","prior_art_status":"UNSEARCHED","problem":"Localized light, humidity, or reactive-vapor exposure in stacks and storage furniture can accumulate between periodic surveys yet leave no durable trace once the transient condition ends. Room-level observations may not represent a particular shelf or cabinet, and visible collection damage may appear only later. The concrete problem is loss of pre-damage, location-specific exposure evidence needed to interpret and prioritize conservation risks.","proposal_index":2,"remaining_contrastive_claim":"This remains Fast–Slow Store Coupling rather than ordinary environmental monitoring only if each replaceable physical witness both serves as bounded local exposure memory and undergoes a controlled, provenance-preserving transformation into a longitudinal conservation history; without that transfer duty it is merely a sensor deployment.","revision_record":{"claim_changes":["Initial version makes no claim that localized exposures are prevalent, damaging, or inadequately monitored at a particular library.","Material responses are treated as exposure proxies requiring corroboration, not diagnoses of collection damage or unique causes."],"conceptual_changes":["Initial candidate instantiates the fast store as a passive dose-responsive material and the slow store as an integrated conservation history.","The opportunity is independent of sealed P1 in affected problem, intervention substrate, actors, and causal path."],"evidence_changes":["No external search or prior-art review was performed; feasibility and problem existence are framed as bounded empirical tests.","Controls, independent spot measurements, inter-reader agreement, and explicit falsifiers are included."],"operational_changes":["The first step is limited to 12 approved stations, 30 days, commercially manufactured passive witnesses, no object contact, and no collection or facilities action."],"parent_version":null,"progress_targets_addressed":["Physical-substrate eligibility","Material independence from P1","Explicit transfer cadence and consolidation transform","Instrument controls and provenance","Bounded authority and safety","Problem and intervention falsifiability"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Fast volatile store","domain_realization":"A replaceable passive dosimeter whose material state locally accumulates light, humidity-time, or compatible vapor exposure during a bounded deployment."},{"archetype_element":"Slow integrated store","domain_realization":"A durable location and collection conservation history containing validated exposure bands, intervals, controls, provenance, uncertainty, and links to retained safe witnesses or images."},{"archetype_element":"Read/write routing rule","domain_realization":"Environmental dose writes directly into the witness material; staff may inspect its provisional state locally, while preservation decisions require the integrated record and corroboration."},{"archetype_element":"Transfer trigger or cadence","domain_realization":"Weekly inspection, immediate harvest at a defined material-response threshold, and routine monthly harvest before expected saturation or fading."},{"archetype_element":"Consolidation transform","domain_realization":"Control comparison, reference-scale reading, rejection of compromised samples, conversion to an exposure band, uncertainty annotation, and integration by location and interval."},{"archetype_element":"Promotion and eviction rule","domain_realization":"Validated responses enter the durable history; compromised or uninformative samples receive a recorded rejection, while spent coupons are safely removed and replaced."},{"archetype_element":"Freshness and authority marker","domain_realization":"Station labels show batch, installation date, maximum exposure interval, and provisional status; only validated historical entries are authoritative evidence, and neither layer alone authorizes treatment."},{"archetype_element":"Consistency reconciliation check","domain_realization":"Station, batch, control, and interval identifiers link each harvested witness to its durable entry and successor, with missing transfers, contradictory readings, and unlinked replacements flagged for review."}],"substrate_contract":{"counterfactual_independence":"If databases, software, automated alerts, algorithms, organizational routing, and digital control are removed, the essential effect remains: passive dosimeter materials physically retain local exposure, staff compare them with physical controls and reference scales, and validated bands can be preserved on archival paper conservation cards. Removing the dose-responsive measurement substrate eliminates the essential exposure memory.","forbidden_channel_audit":"Software may optionally transcribe measurements or display trends, and existing authority procedures constrain downstream action, but neither generates nor infers the exposure trace. No training, incentive, governance rule, database, model, or information-routing system substitutes for the physical material response. The proposal does not relabel a workflow as a sensor intervention.","primary_allowed_process":"MEASUREMENT_INSTRUMENTATION"},"title":"Passive Exposure Witnesses Coupled to Conservation Histories","version":0},"schema_version":1}